Great products for the reefBy Shannonon 12/17/2014

Always great quality in a quantity that priced right - I'm a longtime customer and this fits well for my two-part regime.

Excellent ProductBy Johnon 11/21/2014

John would recommend this product to a friend

First time using this product. 2 part mix, Mixes well and is very easy to use. Calculator helps tremendously. Great pricing.

Great MagnesiumBy Squarefaceon 7/25/2014

Squareface would recommend this product to a friend

Easy to mix and easy to use with the BRS Calculator.

The two part sustem dissolves very fast and with no residue.By AndyBon 6/8/2014

AndyB would recommend this product to a friend

Having only used Red Sea Coral Pro sale I found the two part system to get my levels to where they should be where Kalkwasser was not doing it alone.

Great ProductBy Steveon 2/13/2014

Steve would recommend this product to a friend

I am just starting up a 2-part dosing system. This is a great product at a reasonable price. It should last me for a few months. Thanks BRS!

Very cost effective way of maintaining magnesiumBy matthewon 1/12/2013

matthew would recommend this product to a friend

I've been using this product for a couple years with good results. Instructions are easy and the BRS reef calculator makes dosing this product so easy. Using the BRS calculator and Bubble Magus doser with this product is basically a "set it and forget it" type of deal, and I test magnesium a couple times per week to double check this. This product is so much cheaper than other bottled liquid magnesium products if you don't mind mixing the solution up yourself (which is very easy).

Ease of useBy Kwadwoon 10/8/2012

Kwadwo would recommend this product to a friend

Great product and easy to use

Excellent productBy Jameson 3/14/2012

James would recommend this product to a friend

Mixing your own Mag solution is more economical. BRS products make it easy and less expensive.

Excellent productBy Jameson 3/14/2012

James would recommend this product to a friend

Using the Bulk Mag Sulfate is simple to use. Make sure your store it in a dry space. Thanks again for providing a great product.

Great stuff, a must have for stabilizing PH and CalciumBy Juanchyon 10/14/2011

Juanchy would recommend this product to a friend

Had problems with Calcium disappearing to quickly, added this to my recipe through my auto top off, issue resolved, clean too

Great ProductBy Jonathanon 10/12/2011

Jonathan would recommend this product to a friend

great product, easy to mix, by far the most cost effective way to dose my large sps tank cause i need to dose ALOT

Excellent product!By allen7_7on 9/7/2011

allen7_7 would recommend this product to a friend

I am surprised how clear the two part solution is once its all mixed up. Easy to dose and maintain mag levels. Thank BRS!!

More is betterBy DETANEon 8/5/2011

DETANE would recommend this product to a friend

Best performance over many other products on the market. I say more is better because I end up buying a lot of this product so a 5gl bucket was the best deal in the long run.

Pure product, easy to use, BRS the best optionBy Richardon 7/30/2011

Richard would recommend this product to a friend

Try pricing out magnesium supplements from other sellers. Nowhere else can you get this purity, at this price, with the support that BRS gives. My mag levels are rock solid thanks to BRS.

BRS Mag is the way to goBy Richardon 7/30/2011

Richard would recommend this product to a friend

Other magnesium options are painfully expensive. I bought the 2 magnesium products from BRS in bulk, saved on shipping. With BRS instructions and their pure products I can keep my levels spot on economically.

Clean Mag mix...By Toureon 6/14/2011

Toure would recommend this product to a friend

I use powder calc and alk from another vendor (as I received a ton for free), but have been using BRS mag for three years and its been very consistent in delivering the proposed concentration. As soon as I finish the remainder of my calc and alk I will be switching to BRS calc and alk two part mix.

Great productBy Dekeon 6/4/2011

Deke would recommend this product to a friend

Very easy to mix and I love the pharmaceutical grade. This is high quality stuff and makes such a huge difference in maintaining high levels of calc/alk

Great Value By Wesleyon 4/13/2011

Wesley would recommend this product to a friend

This is another great brs product, dissolves clean and quickly.

Great productBy javaoneon 3/21/2011

javaone would recommend this product to a friend

Very easy to mix and dose, crystal clear.

Effective and easy to USBy Michaelon 3/17/2011

Michael would recommend this product to a friend

If you can mix a powdered kids drink you can make up the Bulk Reef Supply supplements like the Magnesium. I have a 100 gallon heavily stocked SPS tank with heavy GFO and carbon that robs a lot of magnesium, due to my tang population. I really like that BRS gives you a couple of different recepies you can taylor to your systems equipment and needs. The BRS Magnesium mix is by far the best cost saving choice and maintains my needs as well as any of the pre-mixed name brands and powders. I've tried many of the magnesium mixes on the market and have observed no difference in coral growth and calcification. You save so much mixing your own and with over 10 months of use, my corals continue to calcify at an excellent rate.

Excellent grade product !!!By Ricardoon 3/8/2011

Ricardo would recommend this product to a friend

Simply, used it in conjunction with Mag Chloride (see mixture instructions @Two parts instructions at the bottom of the page) and you are DONE!!! For specific dose consult the REEF CALCULATOR section.

Great stuffBy Timon 2/25/2011

Tim would recommend this product to a friend

This stuff is a must to keep you levels in line and cheap

easy to useBy Timon 2/25/2011

Tim would recommend this product to a friend

Easy to use and cheap

Easy to useBy Darenon 1/10/2011

Daren would recommend this product to a friend

Easy to use. Works very well. Highly recommended.

Great for boosting mg levelsBy Adrianon 12/25/2010

Adrian would recommend this product to a friend

Just follow the instructions on BRS and it works great for boosting your Mg levels....

Completely dissolved!By Derekon 12/2/2010

Derek would recommend this product to a friend

I am using this in conjunction with the magnesium chloride. Packing was great! I mixed 7.5 cups chloride and 3/4 mag sulfate with no sediment. " I mean no sediment" The water was completely clear as stated with means a equal distribution of mag! This was in 1 gallon of ro water. You will see mag sulfate sediment in the bottom of the 1 gallon container but in a couple of hours it will "completely dissolve". Thank you for a easy combination.

good valueBy frankon 9/26/2010

frank would recommend this product to a friend

Just mix this with the magnesium chloride and you have your magnesium supplement. EASY.

Great productBy Alexon 8/28/2010

Alex would recommend this product to a friend

If you aren't sure how much you need get more than you think. Half gallon of mag sulfate and half gallon of mag chloride only make 1.5 gallons of solution. use the reef calculator to figure out how much you need. Half a gallon of solution raised my magnesium to acceptable levels. I ran out quick using the small containers.

great productBy Ferdinandon 8/10/2010

Ferdinand would recommend this product to a friend

Been using this with magnesium chloride. great for raising magnesium to the proper parameter.

Another great BRS productBy Dave3112on 7/8/2010

Dave3112 would recommend this product to a friend

I use this with the magnesium chloride and make the "galllon" recipe and all I can say is wow! Mixes fast and is absolutely clear! Well done BRS! Another great product! Thank you!

Very niceBy Tom Gillespieon 4/13/2010

Tom Gillespie would recommend this product to a friend

This stuff lasts forever. Grat price for what you get.

A great way to purchase MagnesiumBy Toddon 3/5/2010

Todd would recommend this product to a friend

I have some of this and the Magnesium Chloride. I wish I would have started getting this stuff sooner. I dont even want to know how much I have spent on premade name brand Magnesium. This is definitely the way to go. I should be set on Magnesium for the better part of a year for what I would have paid for a months worth of the name brand. BRS scores again. If you are new to this website or just starting out in Reef keeping. Keep these guys in your favorites list. Great service and prices . You can be rest assured that everything they sell is top notch and stuff that they would use themselves. Thanks guys! I have said it once and I will say it again you have acquired a patron for life.
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Yep, It works.By Jasonon 3/4/2010

Jason would recommend this product to a friend

Its easy to give feedback on a product that is exactly as advertised. BRS makes my life and the life of reefers everywhere easier with these clean easy to use DIY products. Thanks BRS!!!!!

super niceBy Steveon 2/17/2010

Steve would recommend this product to a friend

mixes great with the two part magnesium. So clear and adds well. Great item!

Good productBy Saraon 11/17/2009

Sara would recommend this product to a friend

I use this and mix it with Magnesium Chloride to make 2 part solution. It's much cheaper than buying pre-made solutions and easy to make yourself. I've been using it for a couple months now. It keeps my magnesium levels up and corals happy!